Support pillow



FIG. 1 is a top perspective view of a support pillow showing anembodiment of the design;

FIG. 2 is bottom perspective view thereof;

FIG. 3 is a top face view thereof;

FIG. 4 is a bottom face view thereof;

FIG. 5 is a first side view thereof; and,

FIG. 6 is a second side view thereof.

The broken line disclosure is for illustrative purposes only and formsno part of the claimed design.

The ornamental design of a support pillow, as shown and described.